22 (number)

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← 21 22 23 →
Cardinaltwenty-two
Ordinal22nd
(twenty-second)
Factorization2 × 11
Divisors1, 2, 11, 22
Greek numeralΚΒ´
Roman numeralXXII
Binary101102
Ternary2113
Quaternary1124
Quinary425
Senary346
Octal268
Duodecimal1A12
Hexadecimal1616
Vigesimal1220
Base 36M36

22 (twenty-two) is the natural number following 21 and preceding 23.

In mathematics[edit]

In physics and chemistry[edit]

In aircraft[edit]

  • 22 is the designation of the USAF stealth fighter, the F-22 Raptor.

In art, entertainment, and media[edit]

In music[edit]

  • "Twenty Two" is a 1997 song by the punk band Millencolin
  • In Jay-Z's song "22 Two's", he rhymes the words: too, to, and two, 22 times in the first verse.
  • "22 Acacia Avenue" is a song by Iron Maiden on the album The Number of the Beast
  • Catch 22 is an album by death metal band Hypocrisy
  • "22" is a song by Lily Allen on the album It's Not Me, It's You.
  • 22 Dreams is a song and album by Paul Weller. The album contains 22 songs on it.
  • The Norwegian electronica project Ugress uses 22 as a recurring theme. All four albums feature a track with 22 in the title.
  • "22" is a song by Taylor Swift on her fourth album Red
  • "The Number 22" is a song by Ashbury Heights on the album The Looking Glass Society.
  • 22, A Million is an album by Bon Iver. The first track of the album is called "22 (OVER SOON)".
  • Cubic 22 was a Belgian techno duo.
  • "22" is a song by the English alternative rock band Deaf Havana on their album Old Souls

In other fields[edit]

  • Catch-22 (1961), Joseph Heller's novel, and its 1970 film adaptation gave rise to the expression of logic "catch-22".
  • Revista 22 is a magazine published in Romania.
  • There are 22 stars in the Paramount Pictures logo.
  • "Twenty Two" (February 10, 1961) is Season 2–episode 17 (February 10, 1961) of the 1959-64 TV series The Twilight Zone, in which a hospitalized dancer has nightmares about a sinister nurse inviting her to Room 22, the hospital morgue.
  • Traditional Tarot decks have 22 cards with allegorical subjects. These serve as trump cards in the game. The Fool is usually a kind of wild-card among the trumps and unnumbered, so the highest trump is numbered 21. Occult Tarot decks usually have 22 similar cards which are called Major Arcana by fortune-tellers. Occultists have related this number to the 22 letters of the Hebrew alphabet and the 22 paths in the Kabbalistic Tree of Life.

In computing and technology[edit]

In religion[edit]

In sports[edit]

  • In soccer there are 22 players that start a game and the maximum number of players playing at any time.
  • In Australian rules football, each team is allowed a squad of 22 players (18 on the field and 4 interchanges).
  • The length of a cricket pitch is 22 yards.
  • In rugby union, the "22" is a line in each half of the field which is 22 meters from the respective try line. It has significance in a number of laws particularly relating to kicking the ball away.

In weights and measures[edit]

In other uses[edit]

Twenty-two may also refer to:

See also[edit]

References[edit]

  1. ^ Sloane, N. J. A. (ed.). "Sequence A000326 (Pentagonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  2. ^ Sloane, N. J. A. (ed.). "Sequence A069099 (Centered heptagonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  3. ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1986): 31
  4. ^ Sloane, N. J. A. (ed.). "Sequence A000124 (Central polygonal numbers (the Lazy Caterer's sequence))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  5. ^ Sloane, N. J. A. (ed.). "Sequence A002088 (Sum of totient function)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  6. ^ Sloane, N. J. A. (ed.). "Sequence A001608 (Perrin sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  7. ^ Sloane, N. J. A. (ed.). "Sequence A059756 (Erdős-Woods numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  8. ^ Sloane, N. J. A. (ed.). "Sequence A006753 (Smith numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  9. ^ Martin, Oscar (2006). "Look-and-Say Biochemistry: Exponential RNA and Multistranded DNA" (PDF). American Mathematical Monthly. Mathematical association of America. 113 (4): 289–307. doi:10.2307/27641915. ISSN 0002-9890. Archived from the original (PDF) on 2006-12-24. Retrieved 2018-11-21.

External links[edit]